Control means



April 9, 1929. H DQIJGLAS 1,708,361

CONTROL MEANS Original Filed Feb. 23, 1927 I I l I l I i E 7% 3 W -4/ m a L a4 a5 25 a 35 W M //E Inventor Attornetfs i Harrv Douglas I exterior of the lock 34 and clamping the cup Patented Apr. 9, 1929.

UNITED STATES PATENT-OFFICE.

HARRY A DOUGLAS, OF BRONSQN, MICHIGAN.

CONTROL MEANS.

\ Application filed February 23, 1927, Serial No. 170,190. Renewed March 1, 1929.

My invention relates to means for controlling the ignition of an internal combustion engine, and particularly of an automotive vehicle, and the principal objectof my invention is to provide new and improved means of this type. In the drawings accompanying this specification and forming a part of this application I have shown, for purposes of illustration, one form which my invention may assume,.and in these drawings:

Figure 1 is a view ment of my invention in front elevation;

Figure 2 is a side elevation of this embodiment of my invention; while Figure 3 is a section taken on the line 3-3 of Figure 1. v

The embodiment of my invention herein shown is applied to an ignition coil 11 comprising a primary 12 and a secondary 13 wound upon a suitable core 14 and enclosed by cup-shaped casing sections 15 and 16 secured in position by the passage through flanges thereon of the rivets 17 securing together the laminations of the core 14, the section 15 being continuous throughout, and the section 16 being. apertured in its base to permit the passage therethrough of a conductor 18 leading from the secondary 13 of the coil 11 to a terminal 19 adapted to receive a connection leading to the distributor and mounted in an insulating bushing 20 secured to the casing section 16 by means of suitable bolts 21, and being apertured further at 22 and 23 for the passage of the shanks of terminals 24 and 25 adapted to receive conductors for connecting the primary 12 in circuit; and the embodiment of my invention herein disclosed comprises a metal cup 26 adapted to engage one edge of the casing sections 15 and 16 to form therewith a chamber 27 disposed within the cup 26; a switch base 28 formed of any suitable insulating material, secured in the casing in any desired manner, for example by crimping the casing on opposite sides of the base 28, as shown herein, and carrying a spring contact 29 secured by means of a conductor 30 to one end of the primary 12, and a second spring contact 31 secured by a conductor 32 to the primary terminal 25.

Mounted in an aperture 33 in the front of the cup 26 is a lock 34 secured in position by means of a nut 35 screw-threaded on the 26 adjacent the aperture 33 between itself and a flange 36 provided on the lock 34 over-- showing this embodi-' lying the outer surface of the front of the cup 26, and, carried on the rear end of the barrel 37 of the lock 34, insulating therefrom, is a conductor strap 38 provided at its ends with contacts 39 adapted to engage the stationary spring contacts 29 and 31 carried by the base 28.

After the parts have been assembled in the cup 26, and the necessary connections made, the cup 26 is secured in position by removin the rivets 17 theretofore holding assemble the core 14 and the casing sections 15 and 16,

and placing in embracing relation to the edges of the core 14 and the flanges of the casing sections15 and 16 U-shaped straps 40 formed integral with the cup 26 and extending from opposite sides of the base thereof, and by then reuniting the core 14=and casing sections 15 and 16, with the inclusion of the straps 40, by the insertion of new rivets 17 extending through the straps 40, as well as the core 14 and easing sections 15 and 16, and

thus serving to hold the cu 26 firmly secured against ready removal rom its position against the casing sections 15 and 16 forming the enclosing chamber 27 for the control means controlling the primary 12 of the coil 11.

It will be understood that the other terminal of the primary 12 is connected by means of a suitable conductor 41 to the other primary binding post 24, and also that if desired the cup 26 may be provided with additional straps 42 and 43 'also formed integral with the cup 26 extending from thebase thereof and available for mounting the entire unit on anyfsuitable support, such as the dash board of an automobile.

From the above description it will be understood by those skilled in the art that I have provided a unit containing an element essential for the operation of the ignition system, and means controlling this element,

mounted in casings adapted to be assembled into a single enclosure enclosing this element and this controlling means and rendering the element inaccessible and inoperable except by the key 44 controllingthe lock 34, that with the parts in position permitting removal of the key and locking of the switch the circuit through the ignition coil is effectively interrupted, andheld interrupted, to be reestablished only by re-insertion of the key and rotation of the key the position shown in Figure 3.

to bring the partsback into Under these circumstances it will be obvious to those skilled in the art that I have provided new and improved control means particularly adapted to the ignition circuit of an internal combustion engine of an automotive vehicle. At the same time, however, it will also be obvious to those skilled in the art that the particular embodiment of my invention herein shown and described may be variously changed and modified without departing from the spirit of my invention, or sacrificing the advantages thereof, and that my invention may be employed other than to control the ignition coil of the ignition system of an internal combustion engine of an automotive vehicle, and accordingly it will be understood that the disclosure herein is illustrative only, and that my invention is not limited thereto.

I claim:

1. In an ignition system for an internal combustion engine of an automotive vehicle, a unit comprising: an element essential in said system for the operation of said engine; a first theft-resisting casing at least partially enclosing said element; lock-controlled switch means; connections connecting said switch means in controlling relation with said element; and a second theft-resisting casing at least partially enclosing said switch means and united with said first theft-resistitng casing by straps extending from one of said casings secured to the other of said casings and securing said casings into a single enclosure for preventing at least unauthorized access to said switch means and said connections and at least the adjacent portion of said element.

2. In an ignition system for an internal combustion engine of an automotive vehicle, a unit comprising: an element essential in said system for the operation of said engine; a first theft-resisting casing at least partially enclosing said element; lock-con trolled switch means; connections connecting said switch means in controlling relation with said element; and a second theft-resisting casing at least partially enclosing said switch means and united with said first theftresisting casing by straps extending from said second casing secured to said first casing and securing said casings into a single enclosure for preventing at least unauthorized access to said switch means and said connections and at least the adjacent portion of said element.

3. In an ignition system for an internal combustion engine of an automotive vehicle, a unit comprising: the ignition coil of said system; a first theft-resisting casing at least partially enclosing said coil; lock-controlled switch means; connections connecting said switch means in controlling relation with said coil; anda second theft-resistin ,casing at least partially enclosing said switc means and united with said first theft-resisting casing by straps extending from one of said casings secured to the other of said casings and I securing said casings into a single enclosure for preventing at least unauthorized access to said switch means and said connections and at least the adjacent portion of said coil.

4. In an ignition system for an internal combustion engine of an automobile vehicle, a unit comprising: the ignition coil of said system; a first theftrresisting casing at least partially enclosing said coil; lock-controlled switch means; connections connecting said switch means in controlling relation with said coil; and a second theft-resisting casing at least partially enclosing said switch means and united with said first theft-resisting casing by straps extending from said second cas ing secured to said first casing and securing said casings into a single enclosure for preventing at least unauthorized access to said switch means and said connections and at v and securing said casings into a single enclosure for preventing at least unauthorized access to said switch means and said connections and at least the adjacent portion of said coil.

6. In an ignition system for an internal combustion engine of an automotive vehicle, a unit comprising: an element essential in said system for the operation of said engine; a first theft-resisting casing at least partially enclosing said element; lock controlled switch means; connections connecting said switch means in controlling relation with said element; and a second theft-resisting casing at least partially enclosing sai switch means, provided with projectin straps for mounting said unit, and unite with said first theft-resisting casing by additional straps extending from said second casing secured to said first casin and securing said casingsiinto a single enclosure for preventing at least unauthorized access to said switch means and said connections and at least the adjacent portion of said element.

7. In an ignition system for an internal combustion engine of an automative vehicle. a unit comprising: the ignition coil of said system; a first theft-resisting casing at least partially enclosing said coil; lock-controlled switch means; connections connecting said switch means in controlling relation with single enclosure for preventing at least unausaid coil; and a second theft-resisting casing thorized access to said switch means and said 10 at least partially enclosing said switch means, connections and at least the adjacent portion provided with projecting straps for mountof said coil.

ing said unit, and united with said first theft- In testimony whereof I hereunto afiix my resisting casing by additional straps projectsignature.

ing from said second casing secured to said first casing and securing said casings into a HARRY A. DOUGLAS. 

